A coal mine explosion in western Turkey has killed at least one miner and trapped between 200 and 300 others.

20 people were rescued from the mine in the town of Soma, in the province of Manisa, local administrator Mehmet Bahattin Atci said.

One later died in hospital.

Mr. Atci said "Rescue efforts are underway".

He said the explosion was caused by a power distribution unit.

Private NTV television said the blast occurred some 2km deep inside the mine.